Swivel mounting for hoists



April 28,- 1925.

I c. c. HANSEN SWIVEL MCUNTINQ FOR HOISTS 2 Sheets-Sheet 1 Filed March1.2 1924 HIS ATTI'O NEY Patented fitprn i925,

CHARLES C. HANSEN, Q13 EA COI'ZIPANY, Ci.

"HNSYLVANIA, .ASSIGNOE T0 INflItIElRfSOLia-RAND J A CORPOHAEION OF NEW!SYNIVEL MIGUNTING' FOR I-IOISTS.

Application filed To aZZ whom it may concern:

He it known that l, thnmnns L Hansen, a citizen of the United titates,and a resi- -ton, cou'z'i't}; o 1' ahainpton, and \te of Pennsylvania,have invented a cer-- tain frlwiv lvlountinp; for Hoists, of which thefollowing: is a specification accompanied by drawings.

This ini 'ention relates to a mounting for hoists which is adapted to besecured to supports of different characters and which is capable of.being; adjusted to any desired position about an arc of 360 in ahorizontal plane.

Small, elastic fluid operated hoists are used in a variety of places formoving, lifting. hauling and handling jobs. They are particularly usedin mines, clamped to various forms of supports'for lowering, raising,hauling", dragging and for numerous other purposes.

in operating these hoists there are times when it is necessary to changethe operative position of the hoist in a horizontal plane and heretoforethis has been a tedious and cumbersome operation necessitatingconsiderable time and trouble.

One object'of this invention is to enable a mounting for a machine ofthe class above mentioned to be readily adjusted to any desired positionin the working: plane of the machine in a simple and improved manner.

Another object of the invention is to produce a mounting for a hoistwhich is composed of but few parts, is adapted to be readily assembledand disassembled, is comparatively inexpensive to manufacture and issturdy and rugged in its construction.

A further object of the invention is to enable a mounting for hoists tobe secured to a flat or curved support in a simple and convenientmanner.

Further objects of the invention will hereinafter appear and theinvention is shown in one of its preferred embodiments in theaccompanying drawings, in which-- Figure 1 is a diagrammatic top planview of part of a mine showing one method of slushing ore from a drift,

Figure 2 is a top plan view of a hoist mounted on a platform car,

Figure 3 is a top plan view of the mounting for a hoist shown in Figure2,

Figure 4: is a vertical sectional view of the March 12, 122i. Serial No.698,64A.

mounting with a hoist connected thereto, a part of the hoist beingbroken away.

Referring" to the drawings and more particularly to Figure 1, one methodof slushing s shown which is carried out underground in numerous mines.Two pairs of tracks A and B may extend into a tunnel C and small minecars D are adapted to run on these tracks. It is often desirable to diga drift E from the tunnel C and in order to save time and labor it hasbeen found eX- pedient to slush out or remove the earth and rock fromthese drifts mechanically. In accordance with the method of slushing'shown, a fluid operated, double drum hoist F, which may be of the typeshown in the patent to Ditson zttl,t2l,l83 granted June 27, 1.922, ismounted on a platform can- G, which may be prevented from moving on thetracks by any suitable means. A. cable H is secured at one end to thehaulage drum of the hoist F and extends around a pulley J, which issecured to a snatch-block K and the other end of the cable is attachedto a scoop P. A cable H is secured to the opposite end of the scoop Pand circles apair of pulleys L and Q. which are secured to the snatchblocks 0 and K respectively, and is wound around the tail rope drum ofthe hoist F. The hoist F is so constructed that when one drum is drivenby the motor, the other drum is free to rotate independently thereof. Bydriving the haulage drum and winding up the cable H, the scoop P isdrawn towards the car D and by means of a slideway R, the scoop Pdischarges its load into the car D. In order to return the scoop P. tothe pile of ore S to refill it, the tail rope drum is driven to wind upthe cable H and the haulage drum is free to rotate to release the cableH. In this manner the ore in the drift E may be slushed in acomparatively short time and with a minimum expenditure of time andlabor.

It is often desirable to adjust the position of the hoist F about aperpendicular axis in a horizontal plane on the car G because thecontour or shape of the tunnel or drift varies as the work proceeds orfor other reasons and, in accordance with the present invention, thehoist F is preferably secured to a base plate T by bolts U and nuts V.The base plate T is in this instance rectangular in its generalformation, and

is preferably formed with a curved portion ll to enable the base plate Tto be mounted on a corresponding surface if desired.

An annular guideway f is preferably formed in the bottom of the baseplate T, and a guide in the form of an annular upwardly extending flangef/ is formed on the bed plate It and is adapted to extend into theguideway f. The bed plate h is preferably annular in its formation andis in this instance adapted to be secured to any fiat surface, as theplatform of the car G, by stud bolts j. The base plate T is adapted torotate on the bed plate 7i through an arc of 360 and is guided in suchmovement by the flange 9 on the bed plate it which cooperates with theguideway j on the base plate T.

i In order to prevent unseating of the base plate T when adjusting thehoist F to any desired position in a horizontal plane or to clamp theplates T and 71 rigidly together, bolts 7;: which are in this instancerectangular in cross section, having heads 0, are adapted to extend intorectangular holes 5 formed in the base plate T and are rotatable withsaid base plate. The heads 0 are adapted to bear against the under sideof the flange 9 and nuts p are screwed onto the opposite ends of thebolts 70. By tightening the nuts 0 on the bolts 7c the base plate T maybe locked against movement relative to the bed plate 72 Although thebolts 70 and the holes Z) are shown rectangular in formation, it is tobe understood that they may take any other form without departing fromthe spirit of the present invention but it is preferable that the boltsZ: be priweuted from turning in the holes 5 so that the nuts 7) may bereadily tightened.

It will be observed that by this mounting, the hoist F may be adjustedto any desired position in a horizontal plane and may be securelymounted on a curved support or fiat support by merely removing the bolts7a and nuts 2 and so may readily accommodate itself to a variety ofsituations.

I claim:

1. In a hoist, the combination of a base plate having an annularguideway, a bed plate, an upwardly extending annular flange on said bedplate cooperating with said guideway and adapted to enable said baseplate to be rotated about said upwardly extending flange, and meansrotatable with the base plate to prevent unseating of the base plate andfor clamping said bed plate and base plate together against rotation.

2. In a hoist, the combination of a base plate having an annularguideway, a bed plate, an upwardly extending annular flange on said bedplate cooperating with said guideway and adapted to enable said baseplate to be rotated about said upwardly extending flange, and means toprevent unseating of said base plate while rotating, and for clan'ipingsaid bed plate and base plate together against rotation, including boltsextending through said base plate and en gaging said flange, said boltsbeing rotatable with said base plate.

3. In a hoist, the combination of a base plate having an annularguideway, a bed plate, and an upwardly extending annular flange on saidbed plate cooperating with said guideway and adapted to enable said baseplate to be rotated relative to said bed plate, said base plate beingformed with a plurality of holes adapted to receive bolts to enable saidbase plate to be clamped to said bed plate, a flat support and the like.

In testimony whereof I have signed this specification.

CHARLES C. HANSEN.

